Cardiff Council's 'Usual Suspects' campaign carries the message: "There's no excuse for dropping litter."
The anti-grime crackdown will focus on three main points:
- Dog fouling
- Fly tipping
The council's waste team is also telling dog owners there is a fine of £75 if caught not cleaning up after their dogs.
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Rhossili Bay is one of five locations battling it out to be crowned the best place in Wales in this year's Special Places competition.
An animal centre in north Wales is appealing to the public to donate blankets for their rescue dogs after running low on stock.
Sunshine and showers is the order of the day especially in central and northern parts. A chilly night but Thursday set to be the best day.